[INFO] crate milcheck 0.1.8 is already in cache
[INFO] checking milcheck-0.1.8 against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] extracting crate milcheck 0.1.8 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate milcheck 0.1.8 on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate milcheck 0.1.8
[INFO] finished tweaking crates.io crate milcheck 0.1.8
[INFO] tweaked toml for crates.io crate milcheck 0.1.8 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate milcheck 0.1.8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 60880304d04ebdf67c440aa02ff097d09f4f3cb71118925dcea5619ff0693e0f
[INFO] running `"docker" "start" "-a" "60880304d04ebdf67c440aa02ff097d09f4f3cb71118925dcea5619ff0693e0f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking milcheck v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `input_handle`
[INFO] [stderr]   --> src/event.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     input_handle: JoinHandle<Result<(), Error>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `tick_handle`
[INFO] [stderr]   --> src/event.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     tick_handle: JoinHandle<Result<(), Error>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `finish`
[INFO] [stderr]   --> src/event.rs:79:12
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn finish(self) -> Result<(), Error> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `input_handle`
[INFO] [stderr]   --> src/event.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     input_handle: JoinHandle<Result<(), Error>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `tick_handle`
[INFO] [stderr]   --> src/event.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     tick_handle: JoinHandle<Result<(), Error>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `finish`
[INFO] [stderr]   --> src/event.rs:79:12
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn finish(self) -> Result<(), Error> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `flag`
[INFO] [stderr]    --> src/cli.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn flag(
[INFO] [stderr]     |            ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `flag`
[INFO] [stderr]    --> src/cli.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn flag(
[INFO] [stderr]     |            ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.72s
[INFO] running `"docker" "inspect" "60880304d04ebdf67c440aa02ff097d09f4f3cb71118925dcea5619ff0693e0f"`
[INFO] running `"docker" "rm" "-f" "60880304d04ebdf67c440aa02ff097d09f4f3cb71118925dcea5619ff0693e0f"`
[INFO] [stdout] 60880304d04ebdf67c440aa02ff097d09f4f3cb71118925dcea5619ff0693e0f